Golf-ball.



Patented June 3, I902 E. KEMPSHALL.

GULF BALL.

(Application filed Apr. 22, 1902.)

No. 7u|,73e.-

(No Model.)

1120612601! EZeaZ6r/1Zmpa/zall,

UNITED STATES PATENT OFFICE.

ELEAZER KEMPSHALL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE KEMPSHALL MANUFACTURING COMPANY, A CORPORATION OF NEW JERSEY.

GOLFLBAALL.

SPECIFICATION forming part of Letters Fatent N 0. 701,736, dated June 3, 1902. Application filed April 22, 1902.' Serial No. 104,108. (No model.)

To all whom it may concern:

Be it known that 1, ELEAZER KEMPSHALL, a citizen of the United States, residing inBoston, in the county of Suffolk and State of Massachusetts, have invented'certain new and useful Improvements in Golf-Balls, of which the following is a specification."

This invention relates to playing-balls,and especially to those used in the game of golf; and its object is to increase the liveliness or driving power of the ball.

In the accompanying drawings, Figure 1 is a part-sectional view of a ball made in accordance with my present improvements. Fig. 2 is a part-sectional view of a rubberthread filling. Fig. 3 is a sectional view of my improved ball beforean outer shell is ap plied thereto. Fig. 4 illustrates a stage in forming the Fig. 3Varticle, and Fig. 5 shows the final stage in forming the completed ball illustrated at Fig. 1.

In the several Views similar parts are designatedby similar charactersof reference.

For the filling of theballI employ rubber threads 1, wound under tension, preferably upon a gutta-percha' center piece 2. Upon this filling I apply a shell, preferably by compressing. thereon .hemispherical segments 3 and 4 of hardplastic materialsuch as celluloid or gutta-percha, the latter being preferred the segmentsbeing compressed and welded by means of heating-dies 5 and 6. The heat renders the "shell soft, so that it may weld and also be given a spherical form by the dies, and the pressure is maintained until the shell cools and hardens. In the ball thus produced I form diametrical holes 7, 8, and 9 at right angles to each other and intersecting at the center of the ball. In making the holes some of the rubber bands are cut at A, and owing to the tendency of the severed bands to assume their normal condition the rubber-thread sphere as a whole is caused to swell or at leastto exert an expansive tendency upon all parts of the shell, tending to preserve its normal spherical form, whereby the ball is rendered highly elastic, since a blow which tends to distort the shell is preferably resisted by the expansive mass confined therein, so that the ball flies from the club with phenomenal energy. While I prefer'to make three perforations, still my invention is not limitedvtotthis number; nor'is it essential in all casesthat the perforations be at right angles and'intersecting one another. Upon theball thus'formed I prefer to weld, by meansof heating-dies 10'and 11, a shell of celluloid or gutta-percha, preferably the latter, said shell'consistin'g of segments 12 and 13. Thustheoriginalshell'B is reinforced, and the holes .7, 8, and 9 are covered, the ball thus produced having excellent flying qualities. It is not essential, however, that the outer shell (indicated at C, Fig. 1) be used in all cases, and it may be formed of other material or materials within the scope of my invention. 'The shells weld together by reason of the heat and pressure of the dies, and thus prevent the formation of cracks in the inner shell B around the holes, due to the expansion of the filling, andalso obviate liability of the inner shell B to distortion by reason of possible unevenness'of the expansive pressure of the filling. 5

Having now described my invention, I claim- 7 1. A playing-ball comprising windings of tensioned rubber :inclosed .by'a shell formed of plastic material; a perforation extending entirely through said ball, *and the rubber being cut or severed in the region of said perfora'tion and tending to expand the shell.

2. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of plastic material; perforations extending entirely through said ball, and the rubber being cut or severed in the region of said perforations and tending to expand the shell; said perforations being diametrical and intersecting at the center of the ball.

3. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of plastic material; three perforations extending each entirely through said ball, each at right angles to the othersgfthe rubber being cut or severed in the region of said perforations and tending to expand the shell in all directions, and said perforations being diametrical and intersecting at the center of the shell.

4. A playing-ball comprising a filling which consists of windings of tensioned rubber, and a whole unbroken shell of hard material inolosing said filling; at least a portion of said windings of rubber being severed, and tending to expand said shell.

5. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of plastic material and provided with a perforation; the rubber being cut or severed in the region of said perforation and tending to expand the shell; and an outer unbroken shell secured upon said shell and covering said perforation.

6. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of plastic material, the structure being provided with diametrical perforations, which intersect at the center of the ball, and the rubber being cut or severed in the region of said perforations and tending to expand the shell in all directions; and an outer shell of plastic material welded upon said shell.

7. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of plastic material, the structure being provided with three diametrical perforations,

which intersect at the center of the ball and extend at right angles to one another; the rubber being cut or severed in the region of said perforations and tending to expand the shell in all directions; and an outer shell of similar plastic material welded upon said shell.

8. A playing-ballcomprisinga center piece, windings of tensioned rubber thereon, and a shell formed of gutta-percha upon said rub ber; perforations extending entirely through said ball, and the rubber being out or severed in the region of said perforations and tending to expand the shell.

9. A playing-ball comprising windings of tensioned rubber inclosed by a shell formed of gutta-percha, the structure being provided with perforations, and the rubber being out or severed in the region of said perforations and tending to expand the shell; and an outer shell of gutta-percha compacted upon said shell and covering the perforations.

ELEAZER KEMPSI'IALL.

Vitnesses:

B. C. STICKNEY, JOHN O. SEIFERT. 

